[SaabJohan]

Brake fluid should be replaced once every two years.
Check what type of brake fluid you system can handle and buy a good fluid, Motul, Castrol and so on. The wet and dry boingpoints are important, you never want your brake fluid to boil.

If you want better brake pads you can take a look at for example Pagid or Performance Friction, both known to produce good pads.

In general a pad wears itself and cause dust or it wears the brake disc. A brake pad can also work well in high temperatures or in low temperatures. To find a pad material that can do all is usually impossible.